Thomson Reuters Net Up but Revenue Falls

Thomson Reuters Corp. reported a 41% drop in operating income in the third quarter, signaling that difficulties persist in its core business serving financial professionals.

The financial-data and news company said net income rose 24%, thanks to a tax benefit and other one-item items. But revenue fell 7% to $3.2 billion, as growth in the company's legal and tax and accounting divisions couldn't fully offset declines in its core businesses serving traders and investors as many of its largest global banking clients cut...